The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 1992
Filed:
Jul. 01, 1991
Applicant:
Inventor:
Toru Nakako, Kitakyushu, JP;
Assignee:
Kabushiki Kaisha Yaskawa Denki Seisakusho, Kitakyushu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
29 57 ; 414729 ; 901 30 ;
Abstract
According to the present invention, there is provided a tool changing device for a robot comprising a piston reciprocating in a cylinder, a supporting block provided at the distal end of a piston rod, a pair of links interconnecting the supporting block to a pair of cramp members cramping a tool mounting plate. Even in a case where the supply of a pressurized fluid is interrupted during the cramped state, and outside uncramping force is applied to the cramp members, a side surface of each cramp member abuts against a side surface of the supporting block, and the cramping members are thereby held in the cramping state.